103405158 has 48 divisors (see below), whose sum is σ = 231962640. Its totient is φ = 33265728.

The previous prime is 103405151. The next prime is 103405177. The reversal of 103405158 is 851504301.

103405158 is a `hidden beast` number, since 103 + 40 + 515 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103405151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92016 + ... + 93132.

It is an arithmetic number, because the mean of its divisors is an integer number (4832555).

Almost surely, 2^103405158 is an apocalyptic number.

103405158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103405158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115981320).

103405158 is an abundant number, since it is smaller than the sum of its proper divisors (128557482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

103405158 is a wasteful number, since it uses less digits than its factorization.

103405158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1301 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 103405158 is about 10168.8326763695. The cubic root of 103405158 is about 469.3686376940.

Adding to 103405158 its reverse (851504301), we get a palindrome (954909459).

The spelling of 103405158 in words is "one hundred three million, four hundred five thousand, one hundred fifty-eight".